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Finding the Fourth Proportional to 163,301.70, 225,367.48 and 90,713.06

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Solution

The fourth proportional to 163,301.70, 225,367.48 and 90,713.06 is: 125,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,301.70 : 225,367.48 = 90,713.06 : x
  2. Step 2: Convert to fraction form
    163,301.70/225,367.48 = 90,713.06/x
  3. Step 3: Cross multiply
    163,301.70x = 225,367.48 × 90,713.06
  4. Step 4: Simplify right side
    163,301.70x = 20,443,773,735.29
  5. Step 5: Solve for x
    x = 20,443,773,735.29/163,301.70
  6. Step 6: Final answer
    x = 125,190.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.